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| class Solution {
public:
bool isIsomorphic(string s, string t) {
int m1[256] = {0}, m2[256] = {0};
for (int i = 0; i < s.size(); ++i) {
if (m1[s[i]] != m2[t[i]]) return false;
m1[s[i]] = i + 1;
m2[t[i]] = i + 1;
}
return true;
}
};
|